'Divergent' Blu-ray featurette reveals how Chicago was turned into a dystopian city in movie

“Divergent” director Neil Burger and his crew were tasked with turning Chicago into a post-apocalyptic city while filming in the city last year. Sounds simple enough. Dirty up the buildings, bust a few windows, knock over a bench or two, bing, bang, boom, right?

“There’s subtleties as you look around the wide angle scope of the city,” said one crew member in the Hollywood Reporter clip. “Because there are no longer cars, you wouldn’t have traffic lights. The lines on the asphalt would long be gone. So most of the shops are gone so we’d kind of bury that. If you get rid of all signage, all pedestrians, all cars, the city automatically looks different, but not so different that it’s a thousand years in the future and just kind of looks fake.”

"Divergent" made $274 million at the world wide box office, according to boxofficemojo.com.

The sequel, "Insurgent," is currently filming in Atlanta, but it appears Chicago won't be completely left out of the film. "They shot some aerial footage (in Chicago) a few weeks ago," said Chicago Film Office director Rich Moskal Tuesday, "but no word yet on other filming here for the sequel."